Cultivator attachment.



No. 780,505. 0 'PATENTED JAN. 24,1905.

' J. W. JOYCE.

GULTIVATOR ATTACHMENT-.1

APPLICATION FILED OCT. 17,1904.

an WJ Mikes Inveptor. 7 b9 Z I, m f I I l, Attqrnegs Patented January 24, 1905.

PATENT OFFICE.

JOHN WORTH J OYCE. OF MAY, TEXAS.

CULTIVATOR ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 780,505, dated January 24, 1905 Application filed October 17, 1904. gerial No. 228,760.

To all whom it may concern:

Be it known that 1, JOHN WORTH JoYoE, a citizen of the United States, residing at May, in the county of Brown and State of Texas, have invented a new and useful Cultivator Attachment, of which the following is a specification. v

This invention relates to cultivators, and has particular reference to an improved attachment whereby the cultivator-gangs may be supported or sustained in operative groundengaging position or elevated from the ground, as may be desired.

The object of the invention is to simplify and improve the construction of the said attachment and to enable the cultivator-gangs to be raised or lowered, as may be desired, without having recourse to the operating-levers and the segment-racks engaged thereby.

With these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and partion showing the device detached from the' cultivator.

Corresponding parts in both figures are indicated by like characters of reference.

For purpose of illustration "invention has in the accompanying drawings been shown applied to an ordinary riding-cultivator, of which 1 designates the axle, 2 2 the wheels, 3 3 the cultivator-gangs, 4 the tongue, and 5 the drivers seat, which latter is supported by the rearwardly-converging framebars 6 6. Each of said frame-bars carries one of the improved attachments, one of which is provided for each of the cultivator-gangs. It is to be understood that in cultivators which are not provided with suitably-located framebars the construction will be slightly modified from that shown and described.

Each of the attachments in its preferred form includes a pair of uprights 7 7, secured to opposite sides of a frame or base bar 6 by means of a transverse bolt 8 or other suitable fastening device. secured the upper end of an oblique brace 9, the lower end of which is secured to the framebar by means of a bolt 10. The pairs of uprights will thus be sustained in an approximately vertical position.

Between the uprights 7 7 near the lower and upper ends of said uprights, are pivoted a pair of levers 11 12, which are preferably of the curved or segmental shape clearly illustrated in the drawings, although within the scope of the invention the shape of said levers may be modified to any desired extent. The free ends of said levers are connected by means of connecting-bars 13 13, which are disposed on either side of said levers and are connected therewith pivotally by means of ends or pivots 14. It will be observed that when the free ends of the levers are swung upwardly the connecting-bars 13 will abut upon the uprights 7 as clearly shown in the drawings, thereby forming a stop to limit the movement of said levers. The downward movement of said levers will be limited by the con necting-bars abutting upon or engaging the frame-bars 6, as shown in dotted lines in Fig. 2 of the drawings. 1

15 designates a segment-rack the ends of which are secured by rivets 16 or equivalent fastening means between the connecting-bars 13. To one of said connecting-bars and concentrically with the segment-rack is fulcrumed a lever 17 having a spring-actuated pawl or dog 18 engaging the segment-rack and provided also with a lip 19, overhanging the segment-rack and serving to guide the lever with relation to the latter. The lever 17 is provided at one'end with a handle 20 and at its Between these uprights is opposite end with a hook 21, which is connected, by means of achain 22 and a link-rod 23, with one of the gangs of the cultivator.

Pivotally connected with the upper lever 12 is a link 24., which is connected, by means of a spring 25 and an adjusting-chain 26, with a hook 27, attached to the frame-bar 6. The tension of the spring 25 may be regulated by properlyadjusting the point of connection of the chain 26 with the hook 27.

From the foregoing description it will be understood that the cultivator is provided with one of the improved attachments for each of the gangs. It will also be understood that in cultivators which are not provided with the frame bars or members 6, disposed convenient for the purpose, the members of the attachment may be connected with an independent frame-bar or base-bar, which may be mounted in any suitable position and by any suitable means upon the frame of the cultivator to which the invention is applied.

With regard to the operation of the invention it will be seen that by manipulating the hand-levers 17 the cultivator-gangs may be adjusted vertically to any desired position, so

. that the blades or ground-engaging elements shall be capable of entering into the soil to the desired depth. When the hand-levers have been thus adjusted with relation to the segment-racks and the plow-gangs are elevated from the ground, as shown in Fig. 1, it is evident that downward pressure upon the handles of the levers 17 will cause the levers 11 and 12 to swing to the position indicated in dotted lines in Fig. 2, thus lowering the connecting-bars 13, and consequently lowering the segment-racks and the adjusting-levers until the lower ends of the connectingbars abut upon the frame-bar 6, thus arresting the downward movement, which will be suflicient, however, to enable the blades to en ter into the ground to the desired depth.

' This position will be maintained against the tension of the spring 25, partly by the weight of the gangs and partly by the downward strain to which they will be subjected in operation. Tolift the gangs from the ground,it is only necessary to push upward upon the handles of the levers, when the tension of the springs 25 will assist in raising the gangs and in maintaining them in an elevated position. In like manner, if in operation any obstruction, such as a stump or rock, shall be encountered the points of the plow-engaging blades will be tilted rearwardly, and the downward strain upon the levers 17 being thus overcome the tension of the springs will be sufficient to raise the gangs from the ground until the obstruction has been passed, when the gangs may be readily restored to operative position by the driver.

It is obvious that the gangs will operate in the manner described independently of each other, also that said gangs may be readily raised from the ground when the machine is to be turned at the end of a row or when for any reason it shall be desirable to do so without adjusting the position of the levers 17 with relation to the segment-racks.

The improved attachment, as will be seen, is of extremely simple construction, and it may with slight modifications be applied to riding-eultivators of any ordinary and wellknown construction.

Having thus described the invention, what is claimed is- 1. The combination with a riding-cultivator, of spaced uprights, levers pivoted between said uprights, bars connecting the free ends of said levers, aspring to retain said levers in a raised position, and means adjustably connecting the connecting-bars with a cultivatorgang.

2. A cultivator attachment including a pair of spaced uprights, a pair of levers mounted pivotally between said uprights, bars pivotally connecting the free ends of said levers, a segment-rack between said bars, a hand-lever pivotally connected with the latter and having a spring-actuated dog engaging the segment-rack, links connecting said hand-lever with a cultivator-gang, and spring means disposed to elevate the free ends of the levers pivoted between the uprights.

3. In a cultivator attachment, a pair of pivotally-mounted levers, connecting means for the free ends of said levers, spring means for automatically elevating the latter, a segmentrack secured to the lever-connecting means, a hand-lever connected pivotally with the latter and having a hook at one end thereof, and links connecting said hook with one of the cultivator-gangs.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

JOHN \VOBTH JOYCE.

WVitnesses:

W. R. LINDLEY, WM. LINDLEY. 

